Benzyl (1-hydroxy-2-methylbutan-2-yl)carbamate CAS 142687-98-7
| CAS No. | 142687-98-7 |
| Molecular Formula | C13H19NO3 |
| Molecular Weight | 237.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Benzyl (1-hydroxy-2-methylbutan-2-yl)carbamate (CAS 142687-98-7), molecular formula C13H19NO3 and molecular weight 237.29 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Benzyl (1-hydroxy-2-methylbutan-2-yl)carbamate (C13H19NO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H19NO3 |
| Molecular Weight | 237.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 1 |
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- n-(2-Aminoethyl)-4-methoxybenzenesulfonamide (CAS 90566-22-6)
- N~1~-(2-ethylphenyl)-beta-alaninamide hydrochloride (CAS 1268990-71-1)
- 4-(3-Chloropropoxy)tetrahydro-2h-pyran (CAS 1247406-64-9)
- 1-(Carbamoylmethyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 954568-83-3)
- N4-Benzoyl-2-O-tert-butyldimethylsilyl-5-O-DMT-cytidine (CAS 81256-87-3)
- 3,4-Dihydro-2H-pyrano[2,3-b]pyridin-4-ylamine dihydrochloride (CAS 2248366-96-1)
- Semaglutide impurity 255 (CAS CATO-C4X-2226255)
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